1992721480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1\times {\mathrm{2029}}^1$

素因数の和:2654

約数の個数: 64

約数和(自身を含む): 4598193600

約数和(自身を除く): 2605472120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 571, 860, 1142, 1720, 2029, 2284, 2855, 4058, 4568, 5710, 8116, 10145, 11420, 16232, 20290, 22840, 24553, 40580, 49106, 81160, 87247, 98212, 122765, 174494, 196424, 245530, 348988, 436235, 491060, 697976, 872470, 982120, 1158559, 1744940, 2317118, 3489880, 4634236, 5792795, 9268472, 11585590, 23171180, 46342360, 49818037, 99636074, 199272148, 249090185, 398544296, 498180370, 996360740, 1992721480]

約数ペア:

[(1, 1992721480), (2, 996360740), (4, 498180370), (5, 398544296), (8, 249090185), (10, 199272148), (20, 99636074), (40, 49818037), (43, 46342360), (86, 23171180), (172, 11585590), (215, 9268472), (344, 5792795), (430, 4634236), (571, 3489880), (860, 2317118), (1142, 1744940), (1720, 1158559), (2029, 982120), (2284, 872470), (2855, 697976), (4058, 491060), (4568, 436235), (5710, 348988), (8116, 245530), (10145, 196424), (11420, 174494), (16232, 122765), (20290, 98212), (22840, 87247), (24553, 81160), (40580, 49106)]